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Proper Sealing and Seal Replacement

Seals are used at the kiln in- and out-let in order to reduce unintended air entry to, or escape from, the kiln.  Leakage at the kiln outlet can both lower the combustion efficiency of the burner and increase heat losses and are thefore of particular importance.

Air leakage can be controlled by employing an appropriate seal - common types include pneumatic, lamella-, and spring-type seals.  Although seals can last up to 10,000 to 20,000 hours, regular inspection may be needed to reduce leaks.

Development Status Products
Cement, clinker

Proper Sealing and Seal ReplacementSchematic

Proper Sealing and Seal Replacement Publications

Energy Efficiency Improvement Opportunities for the Cement Industry

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making, discusses energy efficiency practices and technologies that can be implemented in cement manufacturing plants. This ENERGY STAR guide provides current real world examples of cement plants saving energy and reducing cost and carbon dioxide emissions.

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Energy Efficiency and Resource Saving Technologies in Cement Industry


This Cement technologies booklet was compiled by the APP Cement Task Force (CTF) through one of its activities to help its member countries share information on all available energy efficient technologies generally used in the world’s cement industry. The document offers a comprehensive compilation of commercially-available energy efficient technologies used in the cement industry.

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